chr4-55953116-C-A

Position:

chr4-55953116-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_025009.5(CEP135):c.145C>A(p.Gln49Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000144 in 1,596,484 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CEP135
NM_025009.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.12

Variant links:

Genes affected

CEP135 (HGNC:29086): (centrosomal protein 135) This gene encodes a centrosomal protein, which acts as a scaffolding protein during early centriole biogenesis, and is also required for centriole-centriole cohesion during interphase. Mutations in this gene are associated with autosomal recessive primary microcephaly-8. [provided by RefSeq, Jun 2012]

CEP135 links:

LOC124900705 (HGNC:):

LOC124900705 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0642288).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CEP135	NM_025009.5 linkuse as main transcript	c.145C>A	p.Gln49Lys	missense_variant	3/26	ENST00000257287.5
LOC124900705	XR_007058124.1 linkuse as main transcript	n.198-645G>T		intron_variant, non_coding_transcript_variant
CEP135	XM_006714055.4 linkuse as main transcript	c.145C>A	p.Gln49Lys	missense_variant	3/26

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CEP135	ENST00000257287.5 linkuse as main transcript	c.145C>A	p.Gln49Lys	missense_variant	3/26	1	NM_025009.5	P1	Q66GS9-1
CEP135	ENST00000422247.6 linkuse as main transcript	c.145C>A	p.Gln49Lys	missense_variant	3/6	2			Q66GS9-2
CEP135	ENST00000706800.1 linkuse as main transcript	n.318C>A		non_coding_transcript_exon_variant	3/5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000856

AC:

AN:

233622

Hom.:

AF XY:

0.0000158

AC XY:

AN XY:

126390

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000921

Gnomad OTH exome

AF:

0.000178

GnomAD4 exome

AF:

0.0000138

AC:

AN:

1444314

Hom.:

Cov.:

AF XY:

0.0000125

AC XY:

AN XY:

718038

show subpopulations

Gnomad4 AFR exome

AF:

0.0000311

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000163

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74348

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000943

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 17, 2023

This sequence change replaces glutamine, which is neutral and polar, with lysine, which is basic and polar, at codon 49 of the CEP135 protein (p.Gln49Lys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with CEP135-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The lysine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.058

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.69

CADD

Benign

DANN

Benign

0.52

DEOGEN2

Benign

0.0032

.;T

Eigen

Benign

-0.26

Eigen_PC

Benign

-0.029

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.71

T;T

M_CAP

Benign

0.0049

MetaRNN

Benign

0.064

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.35

N;N

MutationTaster

Benign

0.94

D;N

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.28

N;N

REVEL

Benign

0.070

Sift

Benign

1.0

T;T

Sift4G

Benign

0.85

T;T

Polyphen

0.0

B;B

Vest4

0.097

MVP

0.36

MPC

0.071

ClinPred

0.057

GERP RS

4.4

Varity_R

0.077

gMVP

0.13

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over